Found a strange issue I can reproduce but not sure if it's CommandUI or White Label plugin doing something wrong here.
https://wordpress.org/plugins/white-label/
In short: if I navigate the regular way to it, it works. If I use CommandUI to get to it, it throws an error as it gets me to a different URL. More details below.
If I go to Settings > White Label I get this URL: /wp-admin/options-general.php?page=white-label
If I use CommanUI which I believe is only using WordPress core / CLI features and Go To White Label, then I get here /wp-admin/admin.php?page=white-label
This then will lead to the following error:
Fatal error: Uncaught Error: Call to a member function show_menu() on null
in /public_html/wp-content/plugins/white-label/admin/class-admin-settings.php on line 842
Call stack:
white_label_Admin_Settings::plugin_page()
wp-includes/class-wp-hook.php:324
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:348
WP_Hook::do_action()
wp-includes/plugin.php:517
do_action()
wp-admin/admin.php:259
Error Details
=============
An error of type E_ERROR was caused in line 842 of the file /home/retracteduser/public_html/wp-content/plugins/white-label/admin/class-admin-settings.php. Error message: Uncaught Error: Call to a member function show_menu() on null in /home/retracteduser/public_html/wp-content/plugins/white-label/admin/class-admin-settings.php:842
Stack trace:
#0 /home/retracteduser/public_html/wp-includes/class-wp-hook.php(324): white_label_Admin_Settings->plugin_page()
#1 /home/retracteduser/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#2 /home/retracteduser/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#3 /home/retracteduser/public_html/wp-admin/admin.php(259): do_action()
#4 {main}
thrown
